<template>
  <el-container class="home-container">
    <!--    头部区域-->
    <el-header>
      <div>
        <img class="logo-img" src="../assets/heima.png" alt="" @click="backToHome">
        <span class="logo-title" @click="backToHome">电商后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button>
    </el-header>
    <!--    页面主体-->
    <el-container>
      <!--      侧边栏-->
      <el-aside :width="isCollapse?'64px':'200px'">
        <!--        菜单折叠按钮条-->
        <div class="toggle-button" @click="toggleCollapse">
          <i v-if="isCollapse" class="el-icon-d-arrow-right"></i>
          <i v-else class="el-icon-d-arrow-left"></i>
        </div>
        <!--        侧边栏菜单一 -->
        <el-menu background-color="#333744" text-color="#fff" active-text-color="#409EFF" unique-opened :collapse="isCollapse" :collapse-transition="false" router>
          <!--          一级菜单-->
          <el-submenu :index="item.id + ''" v-for="item in menuList" :key="item.id">
            <!--          一级菜单模板区域-->
            <template slot="title">
              <!--                图标-->
              <i :class="iconsObj[item.id]"></i>
              <!--                文本-->
              <span>{{item.authName}}</span>
            </template>
            <!--            二级菜单-->
            <el-menu-item :index="'/'+subItem.path" v-for="subItem in item.children" :key="subItem.id">
              <!--          二级菜单模板区域-->
              <template slot="title">
                <!--                图标-->
                <i class="el-icon-menu"></i>
                <!--                文本-->
                <span>{{ subItem.authName}}</span>
              </template>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <!--      内容区-->
      <el-main>
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  name: 'Home',
  data () {
    return {
      menuList: [],
      iconsObj: {
        125: 'iconfont icon-user',
        103: 'iconfont icon-tijikongjian',
        101: 'iconfont icon-shangpin',
        102: 'iconfont icon-danju',
        145: 'iconfont icon-baobiao'
      },
      isCollapse: false
    }
  },
  methods: {
    backToHome () {
      const curentPath = this.$route.path
      console.log(curentPath)
      if (curentPath === '/welcome') return
      this.$router.push('/welcome')
    },
    logout () {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    // 获取菜单
    async getMenuList () {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) return this.$router.error(res.meta.msg())
      this.menuList = res.data
      console.log(this.menuList)
    },
    // 菜单栏折叠与展开
    toggleCollapse () {
      this.isCollapse = !this.isCollapse
    }
  },
  created () {
    this.getMenuList()
  }

}
</script>

<style lang="less" scoped>
  .logo-img{
    cursor: pointer;
  }
  .logo-title{
    cursor: pointer;
  }

  .home-container {
    width: 100%;
    height: 100%;
  }

  .el-header {
    background-color: #373D41;
    display: flex;
    justify-content: space-between;
    padding-left: 0;
    align-items: center;
    color: #ffffff;
    font-size: 20px;

    > div {
      display: flex;
      align-items: center;

      span {
        margin-left: 15px;
      }
    }
  }

  .el-aside {
    background-color: #333744;

    .el-menu {
      border-right: 0px;
    }
  }

  .el-main {
    background-color: #EAEDF1;
  }

  .iconfont {
    margin-right: 10px;
  }

  .toggle-button {
    background-color: #4A5064;
    font-size: 10px;
    line-height: 24px;
    color: #ffffff;
    text-align: center;
    letter-spacing: 0.2em;
    cursor: pointer;
  }

</style>
